Variable power finder

Details Variable power finder Variable power finder

1987-07-31

1988-06-14

Gellner, Michael L.

G03B 1312

Patent

active

047515392

ABSTRACT:
A variable power finder having an objective lens of positive refracting power comprising a first lens unit of positive refracting power movable along an optical axis and a second lens unit releasably attached to the first lens unit in axial alignment, wherein a real image to be observed is formed by the objective lens.

REFERENCES:
patent: 4256396 (1981-03-01), Kawaguchi et al.
patent: 4277158 (1981-07-01), Zawodny

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